Lath-mill.



N5. 865,142. PATENTEDSEPT. s, 1907. 0.w.wILLLT'1;.

LATH MILL APPLICATION FILED APB. 22.1907.

2 SHEETS-SHEET 1.

No.865,142. Q PATENTEDSEPT.3,.1907.

0. w. WILLETT.

LATH MILL.

APPLICATION FILED APR. 22. 1901.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

CHARLES W. WILLETT, OF EVERETT, WASHINGTON, ASSIGNOR OF ONE-HALF TOSUMNER IRON WORKS, OF EVERETT, WASHINGTON, A CORPORATION.

LATH-MILL.

Specification of Letters Patent.

Patented Sept. 3, 1907.

Application filed April 22, 1907- Serial No. 369,662.

To all whom it may concern:

Be it known that I, CHARLES W. WILLETT, a citizen of the United States,residing at Everett, in the county of Snohomish and State of Washington,have invented a new and useful Improvement in Lath-Mills, of which thefollowing is a specification, reference being had to the accompanyingdrawings.

My invention relates to improvements in lath-mills.

- The object of my invention is to provide an economical, symmetricallyarranged lath-mill, having a simple, safe, and reliable method ofoperating feed and presser rollers, and to reverse the same, eliminatingparts heretofore used in such machines, also the better construction andarrangement of my sawing table, having a guide thereon, and being soformed as to adapt it to be laterally adjustable and reversible as toits guide, without a change in the pattern of the machine.

These objects and other practical advantages, I attain by theconstruction, combination and arrangement of parts shown in theaccompanying drawings which form a part of these specifications'and inwhich, T

Figure 1 is a plan view of the lath-mill; Fig. 2 is a side elevation onthe sawing side of the machine. Fig. 3 is a front end elevation of themachine. Fig. 4 is a side elevation opposite to that shown in Fig. 2.

Like letters and numerals refer to like parts throughout the views.

A is the frame of the lath-mill.

B is an adjustable sawing table mounted on horizontal transverse rods 5,5, fixedly secured to the frame A. The table B is secured in the desiredposition on the rods by means of the set screws 6, 6, and it may beremoved to facilitate access to the saws. The frame A is also providedwith bridge-trees O O secured to its top on opposite sides. On thebridge-trees is rotatively mounted, an idler wheel 9, and looselymounted on the shaft 8, are two oppositely disposed arms or members D Dwhich are formed with suflicient metal therein to give them the weightrequired for the presser rollers 10, 10.

The presser rollers are mounted on the ends of the shafts 11, 11 whichare at the outer sides respectively of the members D D and parallel tothe shaft 8. On the opposite ends of the said shafts 11, 11 are mountedthe pulleys 16, 16.

In the frame A, below the table B, is mounted in suitable bearings asawarbor 12 carryingthereon a battery of saws 13 which extend through anopening in the table a suitable distance.

Feed rollers 14, 14 are mounted upon shafts 15, 15 respectively, havingbearings in the frame and located in planes on opposite sides of thesaws and below the presser rollers 10, 10, the said feed rollersextending upwards through openings in the table B a suitable distance.The power is transmitted to the machine by means of the belt E which isso arranged that it passes over and around the pulleys 16, 16 and theidler wheel 9 as shown in Figs. 2, 4. The power is transmitted to thesaw arbor by means of the belt F.

It will now be seen that when a lath bolt is placed upon the table A,adjusted to the side guide 7, and shoved into engagement with the feedroller 14 and the presser roller 10, it is carried forward to the gangsaws If it is desired to feed bolts in the opposite direction,

this may be accomplished by reversing the movement on the pulleys of thepower belt E and also reversing the movement of the power belt Foperating the saw arbor. By thus simply changing the moving direction ofthese two belts the operator is enabled to take position on the oppositeside of the machine and feed material from there without changing anymember of the machine. It is of course understood that the saw arborshall be mounted for right and left rotation. In either case the presserrollers being suitably weighted and mounted on the members D D, which inturn are loosely mounted upon a central shaft 8, material can be passedthrough the machine without straining or clogging the parts, even thoughsuch material be of irregular dimension.

My device provides for a reversible mechanism and a convenient,reliable, and laterally adjustable table with side guide. The table mayalso be of such form that it will extend into spaces about the saws andfeed rollers and thus permit its removal laterally without 'firstremoving any of the shafts from their bearings.

When so removed, the saw arbor can be taken from its shaft withoutdisturbing other parts of the machine. The table being made of suchform, it has a decided advantage, and is an improvement over one made intwo or more parts hinged or secured in other ways, or with open spacesabout the saws, which forms of construction tend to permit pieces ofmaterial to be thrown off by the saws in such manner as to clog orinjure the machine and increase the risk of danger to they operator. Theelimination also of all tooth gearing is a decided advantage, as suchgearing accumulates dirt and refuse, is less easily kept in runningorder and is not nearly so safe as the mechanism I have employed. Mydevice from the nature of its construction is also most economical tomanufacture and operate.

Having thus described my lath-mill, I claim:

1. In a lath-mill, the combination with a sawing table B, having a sideguide, of reversible presscr and feed roller mechanism, consisting of anidler wheel 5), of suitable diameter, rotatively mounted on a shaft 8,placed at a suitable height on the frame, oppositely disposed members DD, loosely mounted on the shaft 8 and carrying parallel to said shaft attheir respective outer sides, shafts 11, 11, at one end of which lattershafts are mounted presser rollers 10, 10, and at the opposite endsthereof pulleys 1G, 16, also feed rollers 1-1, 1-1 mounted on the shafts15, 15 in the frame below the presser rollers, a continuous powertransmitting belt E, connected with a suitable power source and soarranged upon the pulleys of the shafts 11, 11 and 15, 15 and the idler9 as to cause the feed rollers torotate in an opposite direction to thatof the saws, and the presser rollers to rotate in the opposite directionto that of the feed rollers, substantially as described.

2. In a lath-mill, the combination with a gang saw 13, suitably mountedin a frame A, provided with a sawing table B, of reversible presser andfeed roller mechanism,

consisting of an idler wheel 9, of suitable diameter, rota tivelymounted on a shaft 8, placed at a suitable height on the frame,oppositely disposed members D D, loosely mounted on the shaft 8 andcarrying parallel to said shaft at their respective outer sides, shafts11, 11, at one end of which latter shafts are mounted presserrollers'10, 10, and at the opposite ends thereof pulleys 16, 16, alsofeed rollers 14, 1-1 mounted on the shafts 15, 15 in the frame below thepresser rollers, a continuous power transmitting belt E, connected witha suitable power source and so arranged upon the pulleys of the shafts11, 11 and 15, 15' and the idler 0 as to cause the feed rollers torotate in the opposite direction to that of the saws, and the presserrollers to rotate in the opposite direction to that of the feed rollers,substantially as described.

3. In a lath-mill, the combination of a continuous power transmittingbelt E, connected with a suitable source of power, of reversible presserand feed roller mechanism consisting of an idler wheel 9, of suitablediameter, rotativcly mounted on a shaft 8, placed at a suitable heighton the frame of the machine, oppositely disposed members D D, looselymounted on the shaft 8 and carrying parallel to said shaft at theirrespective outer sides, shafts 11, 11, at one end of which latter shaftsare mounted presser rollers 10, 10, and at the opposite ends thereofpulleys 16, 10, also feed rollers 14, 14: mounted on the shafts 15, 15in the frame below the presser rollers, the belt E being so arrangedupon the pulleys of the shafts 11, 11 and 15, 15' and the idler f) as tocause the feed rollers to rotate in the opposite direction to that ofthe gang saws of the mill, and the presser rollers to rotate in theoposite direction to that of the feed rollers, substantially asdescribed.

at. A lath-mill comprising a frame A, saws suitably mounted on a sawarbor, a sawing table B, having a side guide, and reversible presser andfeed roller mechanism consisting of an idler wheel 9, of suitablediameter, rotatively mounted on a shaft 8, placed at a suitable heighton the frame, oppositely disposed members D D, loosely mounted on theshaft 8 and carrying parallel to said shaft at their respective outersides, shafts 11, 11, at one end of which latter shafts are mountedpresser rollers 10, 10, and at'the opposite ends thereof pulleys 1G, 16,also feed rollers 14, 14 mounted on the shafts 15, 15' in the framebelow the presser rollers, a continuous power transmitting belt E,connected with a suitable power source and so arranged upon the pulleysof ,the shafts 11, 11 and 15, 15 and the idler 9 as to cause the feedrollers to rotate in an opposite direction. to that of the saws, and thepresser rollers to rotate in the opposite direction to that of the feedrollers substantially as described.

CHARLES W. WILLETT.

Witnesses:

E. M. KERNAGHAN, W. A. Wnnns.

